Product Introduction: TOP-68-7243 Light Guide

Issuing time:2022-04-26 14:44Author:RandySource:Toplite


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Top-68-7243 series light guide is designed for multi-color LED. The light guide is designed to have large input and output aperture, and the optical integration length is 68mm, which meets the color-mixing requirements of multi-color LEDs with larger luminous surface.


LED adapted:

  • OSRAM OSTAR Stage LE RTDUW S2WP, RGBW, 60W,

  • OSRAM LED ENGINE LZ7-Plus, RGBACL, 60W,

  • Other LEDs having the similar package, luminous surface and power,

  • Luminous surface ≤ Φ4mm

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  • top-68-7243 light guide & LED


Top-68-7243 series light guide has three products to choose from, they are different in the output aperture, please refer to the below table:


Light guide codeInput aperture    Output aperture    Light guide length
TOP-DF68-7243Square    Square68mm
TOP-DBF68-7243SquareOctagon68mm
TOP-DYB68-7243OctagonCircle68mm



top-68-7243 light guide rods


Color-mixing Test


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(Narrow angle light spot)


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(Narrow angle light spot)


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(Wider angle light spot)


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(light beam)


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(light beam)


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(Object shadow, without color separation)


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(Object shadow, without color separation)


Video: https://youtu.be/4GpWxOSNScQ‍












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